Abstract
The optical characterization of materials by absorption and luminescence spectroscopy is of basic importance for any type of optoelectronic application. A manifold of variant forms of optical spectroscopy has been developed. This chapter does not intend to give a complete overview over the large variety of methods, but focuses on a selection of optical spectroscopy techniques with high relevance for the characterization of semiconductor nanocrystals, organic semiconductors and combined material systems for application in solar cells. The methods discussed comprise conventional UV-Vis absorption and photoluminescence spectroscopy as very basic techniques. A method with more specific relevance for solar cells with donor/acceptor systems as absorber material is photoinduced absorption (PIA) spectroscopy. An introduction to PIA spectroscopy is given here, and its usage for the characterization of donor/acceptor solar cells is reviewed. Many spectroscopic measurements can be performed under different conditions concerning the time-scale. Mainly, steady-state measurements are considered in this chapter, but time-resolved techniques are also briefly discussed.
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Borchert, H. (2014). Absorption and Photoluminescence Spectroscopy. In: Solar Cells Based on Colloidal Nanocrystals. Springer Series in Materials Science, vol 196. Springer, Cham. https://doi.org/10.1007/978-3-319-04388-3_8
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DOI: https://doi.org/10.1007/978-3-319-04388-3_8
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